and my major problem i can't downloading videos or another file attachments from mails.. gmail or hotmail whatever files are not downloading..

when i try to download the process downloading is starting but the files are not showing in any location...

and also if i hold on icon (attachment) three options are showing like save download cancel
but when i select one nothing happens.. it's not taking any action.. i also tried uc browser.. but facing same problem..

please any one tell me how to download files... i can download images only but not other file formats.....